Early changes of alveolar ridge contour following ridge preservation using Bio-oss and Bio-oss Collagen A two-year clinical study on the alveolar bone loss of the terminate abutment and residual ridge with free-end partial dentures Bio-oss和Bio-oss骨胶原保持牙槽骨量的临床研究游离端可摘局部义齿基牙牙槽骨及剩余牙槽骨改变的两年追踪观察
Research on the Algorithm of Extracting Ridge and Valley Lines Using Contour Data 利用等高线数据提取山脊(谷)线算法研究
A composite method based on image ridge detection and active contour model ( snakes) for extracting and tracking dynamic coronary arterial vessels from X-ray angiographic sequences is presented. The performance and effectiveness are demonstrated on clinical coronary angiogram sequences and simulated data. 提出了一种基于图像脊提取和snake模型的复合式方法来实现X射线造影图像序列中冠状动脉血管的二维提取和运动跟踪,并分别对临床采集图像序列和模拟图像进行了实验。